/Engine/Source/Runtime/Core/Public/Delegates/DelegateSignatureImpl.inl
template<typename UserClass, typename... VarTypes> FDelegateHandle AddUObject &40; TObjectPtr< UserClass > InUserObject, typename TMemFunPtrType< false, UserClass, void(ParamTypes..., std::decay_t< VarTypes >...)>::Type InFunc, VarTypes &&... Vars &41;